JP2919466B1 - Joint - Google Patents

Abstract

Abstract: PROBLEM TO BE SOLVED: To switch between a water-permeation state and a water-stop state, and to restrict a slide of a cylindrical body in a water-permeation state. It is to provide a joint that can hardly be done. SOLUTION: When a fluid source side main body 1 and a tool side main body 2 are relatively rotated, a valve body 9 is moved in an axial direction to switch between a water passing state and a water stopping state. Moreover, both main bodies 1, 2
When the valve body 9 is axially moved to the water stop position by relatively rotating the valve body 9, the stopper 40 and the notch 41 face each other to allow the cylinder 12 to slide.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joint for connecting a device such as a watering nozzle to a hose or a pipe.

[0002]

2. Description of the Related Art Conventional joints are disclosed in, for example,
There is one disclosed in Japanese Patent Application Laid-Open No. 082395. In this joint, a hose or a pipe is connected to one end of the main body. In addition, a device such as a watering nozzle is plug-in connected to the other end of the main body. Then, by sliding a cylindrical body provided on the outer peripheral surface of the main body, the device such as the watering nozzle can be removed.

[0003] A ball-type cock is incorporated in the main body. The rotation of the ball-type cock opens and closes a water passage from the hose or pipe side to the appliance side, such as a watering nozzle, so as to switch between a water-permeation / water-stop state. Further, a handle for operating the ball-type cock is provided on the outer peripheral surface of the main body, and a cam plate is linked to the handle. Then, when the ball-type cock is rotated by the handle to switch to the water-passing state, the cam plate is adjacent to the cylindrical body to regulate the slide.

In such a joint, if the ball-type cock is rotated to stop the water, a device such as a watering nozzle can be removed without jetting the fluid without stopping the water at the fluid source. Can be. In addition, since the apparatus is in the water stop state, when the device such as the watering nozzle is removed from the main body, the device such as the watering nozzle does not jump out due to the fluid pressure. And, in the water-flowing state, the cam plate is adjacent to the cylinder and restricts its sliding, so that it is possible to prevent the cylinder from being inadvertently slid. Therefore, there is no possibility that a device such as a watering nozzle is detached due to an erroneous operation in the water flowing state.

[0005]

However, in the joint of the prior art described above, the handle and the cam plate must be provided on the outer peripheral surface of the main body, and they protrude in the radial direction of the main body. , It becomes difficult to use. Further, when the handle and the cam plate are provided in this manner, the outer peripheral surface of the joint has many irregularities. If the unevenness increases, for example, when the hose is wound up by a hose winder, the possibility that the unevenness is caught or hit by another thing increases.

Further, in the above-mentioned conventional joint, since the ball-type cock is incorporated in the main body, when the diameter of the ball-type cock becomes large, the joint itself will be either in the radial direction or the length direction. You also have to increase the size. An object of the present invention is to switch between a water-passing state and a water-stopping state, and at the time of a water-passing state, to restrict the sliding of the cylindrical body. It is to provide a joint that can hardly be done.

[0007]

According to the present invention, there is provided an instrument-side connection mechanism for connecting an instrument such as a watering nozzle at one end of a main body, and a hose or a pipe connected to the other end of the main body. The fluid source side connection mechanism is provided, and the instrument side connection mechanism slides a cylindrical body non-rotatably mounted on the main body in the axial direction along the outer peripheral surface of the main body, and moves a device such as a watering nozzle from the main body. Assume that the joint is configured to be removed.

[0008] A first aspect of the present invention provides an instrument-side main body provided with an instrument-side connection mechanism having the above-mentioned cylindrical body, a fluid-source-side body provided with the fluid-source-side connection mechanism, and an instrument-side main body or a fluid-source side. In a state where one of the main bodies is coaxially inserted into the other of the instrument-side main body or the fluid source-side main body, an assembling member that allows relative rotation thereof while restricting the main body from coming off, and A valve body that moves in the axial direction in the main body by relative rotation, a stopper provided on one of the cylindrical body and the fluid source side main body, and a stopper provided adjacent to the other of the cylindrical body or the fluid source side main body, a cylindrical body or Notch formed in one of the other of the fluid source side main body, and when the two bodies are relatively rotated to move the valve body in the axial direction to the water stop position, the stopper and the notch face each other, Allow slide of cylinder Has a feature in that a configuration that.

According to a second aspect of the present invention, in the first aspect, the valve element is spline-coupled to either the instrument-side main body or the fluid-source-side main body, and the valve body is connected to either the instrument-side main body or the fluid-source-side main body. The feature is that it is screwed to the other. The third invention is characterized in that in the first and second inventions, the device-side main body is configured to be inserted into the fluid source-side main body. The fourth invention is characterized in that, in any of the first to third inventions, a cover for covering the stopper and the notch is provided on either the cylinder or the fluid source side main body.

[0010]

1 to 9 show a first embodiment of a joint according to the present invention.
As an example, a sprinkling nozzle joint is shown. As shown in FIGS. 1 and 3, the sprinkling nozzle joint includes a fluid source side main body 1 and an instrument side main body 2. First, the fluid-source-side main body 1 will be described. The fluid-source-side main body 1 includes first and second cylindrical members 42 and 20 arranged coaxially. The first cylindrical member 42 has the water passage 3 formed in the axial direction, and has a hose connection cylindrical portion 4 formed at a rear end thereof. The sleeve member 5 is attached to the outer peripheral surface of the hose connecting tube portion 4 and a plurality of axial slits 5a are formed in the sleeve member 5 in the circumferential direction. The outer cylinder 6 is screwed onto the outer peripheral surface of the first cylinder member 42. The sleeve member 5 is located between the outer peripheral surface of the hose connection cylinder 4 and the inner peripheral surface of the outer cylinder 6.

When a hose (not shown) is connected, the hose is inserted between the hose connecting tube portion 4 and the sleeve member 5 with the outer tube 6 loosened. When the outer cylinder 6 is tightened, the outer cylinder 6 moves in the axial direction, and the taper 6 a formed on the inner peripheral surface thereof is pressed against the sleeve member 5. Therefore, the sleeve member 5 having the axial slit 5a is reduced in diameter, and its tip is pressed against the hose to prevent the hose from coming off or the fluid from leaking. In addition, the hose connecting tube portion 4, the sleeve member 5, the outer tube 6, and the like together constitute a fluid source side connection mechanism according to the present invention.

At the end of the first cylindrical member 42, the water passage 3
Is formed integrally with the enlarged diameter portion 7. And
The second cylindrical member 20 is fixed to the enlarged diameter portion 7. Second
As shown in FIG. 5, the cylindrical member 20 includes a large-diameter portion 21 and a small-diameter portion 22. As shown in FIGS. It is screwed and fixed to the enlarged diameter portion 7 of the member 42. At this time, a ring-shaped seal member 23 is interposed between the end surface of the small diameter portion 22 and the bottom surface of the large diameter portion 7. In the first embodiment,
The fluid source side main body 1 is divided into the first and second cylindrical members 42 and 20, but may be formed integrally.

Next, the device-side main body 2 will be described. The appliance-side main body 2 has a water passage 8 formed in the axial direction, and the tip of the water passage 8 is a plug insertion portion 8a. In the middle of the water passage 8, a communication hole 11 for allowing a poppet portion 10 of the valve body 9 to be described later to be inserted and removed is formed. A cylindrical body 12 is attached to the outer peripheral surface of the distal end of the device-side main body 2. A spring 15 is interposed between a flange portion 13 formed on the outer peripheral surface of the device-side main body 2 and a step portion 14 formed on the inner peripheral surface of the tubular body 12. Further, a plurality of claws 16 are provided on the inner peripheral surface of the cylindrical body 12,
These claws 16 are arranged side by side in the circumferential direction. further,
On the end surface 12a side of the cylindrical body 12, a cylindrical cover portion 17 having an increased inner diameter is integrally formed. Although not specifically shown, the inner peripheral surface of the cylindrical body 12 and the outer peripheral surface of the appliance-side main body 2 are spline-connected. Therefore, the cylindrical body 12 can slide in the axial direction along the outer peripheral surface of the appliance-side main body 2, but the rotation with respect to the appliance-side main body 2 is restricted.

When the cylindrical body 12 is in the normal position shown in FIGS. 1 and 3, the claw 16 projects from the hole formed in the instrument side body 2 toward the plug insertion portion 8a. Therefore, when the plug 18 provided on the grip portion of the watering nozzle is inserted into the plug insertion portion 8a, the claws 16 are hooked on the step 19 formed on the plug 18 to restrict the watering nozzle from coming off. On the other hand, the cylinder 12 is
When these are slid against, the claws 16 are elastically deformed and retracted from the plug insertion portion 8a. In this state, since the claw 16 comes off the step 19, the plug 18 can be pulled out from the plug insertion portion 8a, and the watering nozzle can be removed. The tubular body 12, the spring 15, the claw 16, and the like constitute a device-side connection mechanism according to the present invention.

The fluid source side main body 1 and the instrument side main body 2 described above.
Are assembled as follows. As shown in FIGS. 1 and 3, the rear end of the device-side main body 2 is inserted into the large-diameter portion 21 of the second tubular member 20. Then, the step portion 24 formed on the outer peripheral surface of the instrument side main body 2 is replaced with the first step portion 2 on the inner peripheral surface of the large diameter portion 21.
5, and the flange portion 13 on the outer peripheral surface of the instrument side main body 2 is in contact with the second step portion 26 on the inner peripheral surface of the large diameter portion 21. In this way, the device side main body 2 is connected to the fluid source side main body 1
6, a ring member 28 shown in FIG. 6 is elastically fitted into an annular fitting groove 27 formed on the outer peripheral surface of the second cylindrical member 20. When the ring member 28 is fitted into the annular groove 31, the ring member 28 elastically returns to its original diameter. At this time, the three projecting pieces 29 of the ring member 28
Project from the three insertion holes 30 formed in the annular groove 31 to the inner peripheral surface of the large diameter portion 21. And these projecting pieces 29
Is inserted into the annular groove 31 formed on the outer peripheral surface of the rear end of the device-side main body 2.

In the state where the ring member 28 is assembled, even if the device-side main body 2 is to be pulled out of the fluid source-side main body 1, the side surface of the annular groove 31 collides with the projecting piece 29 of the ring member 28. You. Moreover, the ring member 28
Since the projecting piece 29 of can move along the annular groove 31,
The device-side main body 2 can be rotated with respect to the fluid source-side main body 1. That is, the ring member 28 constitutes an assembly member according to the present invention. An O-ring 32 is provided on the outer peripheral surface of the device-side main body 2 at a position closer to the rear end than the annular groove 31. The O-ring 32 prevents relative leakage between the instrument-side main body 2 and the fluid source-side main body 1 while preventing fluid from leaking therefrom.

Here, when the device-side main body 2 is inserted into the fluid source-side main body 1 as described above, both the main bodies 1 and 2 have:
The valve 9 is incorporated. As shown in FIG. 7, the valve element 9 has a poppet portion 10, and an O-ring 34 is fitted in an annular seal groove 33 on the outer periphery of the poppet portion 10. Further, four first guide pieces 35 are integrally formed at the rear end of the poppet 10. These first guide pieces 3
Numeral 5 denotes a position where the phase is shifted by 90 degrees with respect to the axis of the poppet portion 10 in the direction of the arrow, and the cross section cut perpendicularly to the axial direction has a cross shape. Further, four second guide pieces 36 are formed integrally with the first guide pieces 35 and similarly positioned in the shape of an arrow blade. These second guide pieces 36 project further in the radial direction than the first guide pieces 35, and have threaded portions 37 on their end faces.

When assembling the valve body 9 into the main bodies 1 and 2, as shown in FIGS.
Are engaged with an axial groove 39 formed on the inner peripheral surface of the water passage 8 of the appliance-side main body 2 and are spline-coupled. Further, a screw portion 37 provided on the end surface of the second guide piece 36
Is engaged with a screw portion 38 formed on the inner peripheral surface of the large-diameter portion 21 of the fluid source-side main body 1 and screwed. When the device-side main body 2 and the fluid-source-side main body 1 are relatively rotated, the rotational force is also transmitted to the valve body 9. However, this valve element 9
Since the rotation is restricted by the engagement between the first guide piece 35 and the axial groove 39, the first guide piece 35 moves in the axial direction along the axial groove 39.

Next, the operation of the sprinkling nozzle joint of this embodiment will be described. When the device-side main body 2 and the fluid-source-side main body 1 are at the relative rotation positions shown in FIG. 1, the poppet member 10 of the valve body 9 is in a state of being removed from the communication hole 11. Therefore, the water in the water passage 3 of the first cylindrical member 42 is supplied to the inside of the small diameter portion 22 of the second cylindrical member 20 → between the second guide pieces 36 of the valve body 9 → between the first guide pieces 35 of the valve body 9 → in the axial direction. Groove 39 → communication hole 11
→ It is supplied to the watering nozzle via the water passage 8 of the appliance side main body 2 (water flowing state). As shown in FIG. 1, a plurality of slits 48 are formed on the inner peripheral surface of the water passage 8 of the appliance-side main body 2 so as to be arranged in the axial groove 39. Since the O-ring 34 slides in the water passage 8 when the valve 9 moves, the contact area with the O-ring 34 is made as small as possible. In addition, the slit 4
By determining the number and shape of 8, in the state of water flow shown in FIG.
The flow rate flowing from the water passage 3 to the water passage 8 can also be adjusted.

As shown in FIG. 5, a pair of stoppers 40 projecting in the axial direction are integrally formed on the end surface of the second cylindrical member 20 of the fluid source side main body 1 on the large diameter portion 21 side. The pair of stoppers 40 are arranged in the diameter direction of the second cylindrical member 20. Then, in the above-mentioned water passing state, the tips of the stoppers 40 are made to be immediately adjacent to the end surface 12a of the cylindrical body 12 (see FIG. 8). Therefore, the cylinder 12
To slide against the spring 15,
The slide is restricted, and the watering nozzle cannot be removed.

When the instrument-side main body 2 and the fluid-source-side main body 1 are relatively rotated from the above water-flowing state, the valve body 9 moves in the axial direction along the axial groove 39 as described above. When the relative rotation is made to the relative rotation position shown in FIG. 3, the poppet portion 10 of the valve body 9 enters the communication hole 11 and the O-ring 34 closes the communication hole 11, so that the flow of water is shut off (stop). Water condition). The device-side main body 2 and the fluid source-side main body 1
If you put a mark to indicate the water stoppage and water passing position,
When switching to the water-passing / water-stopping state, it can be confirmed visually and the convenience can be improved.

Here, a notch 41 having substantially the same shape as the stopper 40 is formed on the end face 12a of the cylindrical body 12, and these notches 41 are also arranged in the diameter direction of the cylindrical body 12. . As described above, the cylinder 12 is connected to the device-side main body 2.
When the instrument-side main body 2 and the fluid-source-side main body 1 are relatively rotated, the distal end of the stopper 40 relatively moves while being adjacent to the end surface 12 a of the cylindrical body 12.

When the state is switched to the above-mentioned water stop state,
The stopper 40 is made to directly face the notch 41 (see FIG. 9). Therefore, if the cylindrical body 12 is slid against the spring 15, the stopper 40 enters the notch 41 to allow the sliding, and the watering nozzle can be removed. The numbers and shapes of the stoppers 40 and the notches 41 are not limited at all. Also, the end surface 12 of the cylindrical body 12
a is provided with a stopper 40, and the second
The notch 41 may be formed on the end face of the cylindrical member 20 on the large diameter portion 21 side.

According to the joint for a watering nozzle of the above-described embodiment, as in the case of the joint of the conventional example, if the water-stopping state is maintained,
The sprinkling nozzle can be removed without spraying the fluid without stopping the water at each fluid source. Further, since the water spray is stopped, the water spray nozzle does not pop out due to the fluid pressure when the water spray nozzle is removed. In addition, when the water is flowing, the stopper 40 restricts the slide of the cylinder 12, so that the cylinder 12 can be prevented from being inadvertently slid. Therefore,
When in the water flowing state, the watering nozzle does not come off due to an erroneous operation.

Further, in the sprinkler nozzle joint of this embodiment, the water-passing / water-stopping state can be switched only by relatively rotating the appliance-side main body 2 and the fluid-source-side main body 1, as in the above-described conventional example. There is no need to provide a handle, and there is no increase in size. In addition, the stopper 40 and the notch 41 restrict the slide of the cylindrical body 12 or allow the slide, so that there is no need to provide a cam plate as in the above-described conventional example, and the size is not increased. .

Moreover, since there is no need to provide a handle or a cam plate, almost no irregularities are formed on the outer peripheral surface of the sprinkling nozzle joint. Therefore, for example, even when the hose is wound by the hose winder, the sprinkling nozzle joint does not catch on or hit other things. In particular, in the first embodiment, as shown in FIGS.
The cover 40 allows the stopper 40 and the notch 4
Covering one. Therefore, these stoppers 40 and notches 41 do not appear on the outer peripheral surface side of the sprinkling nozzle joint,
Further, unevenness can be reduced.

In the second embodiment shown in FIG. 10, a screw portion 37 is formed on the end face of the first guide piece 35 of the valve body 9, contrary to the first embodiment. The screw portion 37 provided on the end surface of the first guide piece 35 is engaged with a screw portion 38 formed on the inner peripheral surface of the water passage 8 of the appliance-side main body 2 and screwed. Further, the second guide piece 36 is engaged with the axial groove 39 formed on the inner peripheral surface of the fluid source side main body 1,
Splines are joined. In short, what is desired in the second embodiment is that the valve body 9 is spline-connected to either the instrument-side main body 2 or the fluid-source-side main body 1 and the valve body 9 is connected to the instrument-side main body 2 or the fluid-source-side main body 1. That is, it is only necessary to be screwed to one of the other. In addition,
In the second embodiment, only one stopper 40 is provided. Then, as in the first embodiment, the stopper 40 is
In the case of providing two, the two main bodies 1 and 2 may be designed to rotate relative to each other within a range of 180 degrees so that the valve element 9 can be moved into and out of the communication hole 11, and only one stopper 40 is provided as in the second embodiment. In the case where the valve body 9 is provided, the two main bodies 1 and 2 may be designed to rotate relative to each other within a range of 360 degrees so that the valve body 9 moves into and out of the communication hole 11.

In the third embodiment shown in FIG. 11, the shape of the screw portion 37 provided on the valve body 9 is changed. That is, in the first embodiment, the screw portion 37 is provided on the end surface of the second guide piece 36 positioned in the shape of an arrow blade. However, in the third embodiment, as shown in FIG. A cylindrical guide portion 43 is formed integrally with the first guide piece 35 and a screw portion 37 is formed on the outer peripheral surface of the guide portion 43. Further, as shown in FIG. 11B, a through hole 44 is formed in the axial direction of the guide portion 43. Therefore, even if the screw portion 37 of the valve element 9 is screwed to the screw portion 38 of the fluid source-side main body 1, a flow path can be secured without closing the inner peripheral surface of the fluid source-side main body 1.

The fourth embodiment shown in FIG.
The number of the guide pieces 35 is increased, and the guide pieces 35 are radially arranged around the axis of the poppet part 10. In short, what is desired in the third and fourth embodiments is that any specific structure of the spline connection or the screw connection may be used.

In the fifth and sixth embodiments shown in FIGS. 13 and 14, the position of the poppet 10 of the valve 9 is changed. In the fifth embodiment shown in FIG.
Are arranged between the first and second guide pieces 35 and 36. In the sixth embodiment shown in FIG. 14, the poppet portion 10 of the valve body 9 is arranged on the end side of the second guide piece 36. That is, as shown in FIG. 14, the rod 45 projects coaxially from the end of the second guide piece 36, and the rod 45 is provided with the poppet part 10. And the fluid source side main body 1
A wall 46 is provided therein, and the communication hole 11 is formed in the wall 46.
Is formed so that the poppet 10 enters and exits.

In the joint for a watering nozzle of the sixth embodiment,
When the instrument-side main body 2 and the fluid-source-side main body 1 are relatively rotated from the water-stop state shown in FIG. 14, the valve body 9 moves axially toward the fluid-source-side main body 1 along the axial groove 39. I do. Therefore, the poppet portion 10 is disengaged from the communication hole 11 toward the water passage 3 to open the communication hole 11. A projection 47 is provided at the rear end of the second guide piece 36.
When the poppet portion 10 is completely removed from the communication hole 11 toward the water passage 3, the projection 47 contacts the wall 46.

In this state, the wall 46 and the second guide piece 36
Since a space is formed between the rear end and the rear end, a flow path can be secured. Of course, the rear end of the second guide piece 36 may be directly in contact with the wall 46, but the provision of the projection 47 can secure a flow path with a larger opening degree and reduce flow loss. Can be avoided. That is, in the case of the sixth embodiment, since the rod 45 is inserted into the communication hole 11, the opening degree of the communication hole 11 is reduced accordingly. From this point of view, it is desirable to adopt a structure that can secure a flow path with an opening as large as possible.

In the seventh embodiment shown in FIG. 15, when the fluid source side main body 1 and the instrument side main body 2 are assembled, the first to sixth embodiments are used.
Contrary to the embodiment, the fluid source side main body 1 is inserted into the instrument side main body 2. However, when the fluid source-side main body 1 is inserted into the instrument-side main body 2, the end face of the fluid source-side main body 1 cannot face the end face 12 a of the cylinder 12 provided on the instrument-side main body 2. Therefore, as shown in FIG. 6, the stopper 40 cannot be protruded from the end face of the fluid source side main body 1. Therefore, as shown in FIG.
A bar-shaped stopper 40 is provided on the side surface of the fluid source-side main body 1. Then, the stopper 40 is connected to the device-side main body 2.
The end of the stopper 40 is made adjacent to the end surface 12a of the cylindrical body 12 while being along the side surface of the cylindrical body 12. Of course, as described in the first embodiment, the notch 41 is formed in the end surface 12a of the cylindrical body 12, and when the water is stopped, the notch 41 is opposed to the tip of the stopper 40. , Cylinder 1
2 slides are allowed.

[0034]

According to the present invention, when the water is stopped, the device such as the watering nozzle can be removed without spraying the fluid without stopping the water at the fluid source. In addition, since the apparatus is in the water stop state, when the appliance such as the watering nozzle is removed, the appliance does not jump out due to the fluid pressure. Moreover, when water is flowing,
Since the stopper regulates the slide of the cylinder, it is possible to prevent the cylinder from being inadvertently slid. Therefore, there is no possibility that a device such as a watering nozzle is detached due to an erroneous operation in the water flowing state.

Further, since only the relative rotation of the apparatus-side main body and the fluid source-side main body makes it possible to switch between the water-passing state and the water-stopping state, there is no need to provide a handle unlike the above-mentioned conventional example.
There is no increase in size. Further, the stopper and the notch restrict the slide of the cylindrical body or allow the slide, so that there is no need to provide a cam plate as in the above-described conventional example, and the size is not increased. Moreover, since there is no need to provide a handle or a cam plate, there is almost no unevenness on the outer peripheral surface of the joint. Therefore, for example, even when the hose is wound by a hose winder, the joint does not catch on or hit another object. Furthermore, since the valve body that moves in the axial direction is used to switch between the water-passing and water-stopping states, it is possible to reduce the size of the joint, particularly in the radial direction, as compared with using a ball cock. .

According to the second aspect, when the two main bodies are relatively rotated, the valve element can be moved in the axial direction by the spline connection. According to the third aspect, since the device-side main body is inserted into the fluid source-side main body, the end face of the fluid source-side main body can be opposed to the end face of the cylindrical body provided on the device-side main body. Therefore, it is only necessary to provide a stopper on one of the end faces and form a notch on one of the other end faces, and it is possible to reduce unevenness on the outer peripheral surface of the joint. According to the fourth aspect, since the stopper and the notch are covered by the cover portion, the stopper and the notch do not appear on the outer peripheral surface side of the joint, and the unevenness can be further reduced.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a sprinkling nozzle joint according to a first embodiment, showing a water flowing state.

FIG. 2 is an external view of a sprinkling nozzle joint shown in FIG. However, the plug 18 shown in FIG. 1 is omitted.

FIG. 3 is a cross-sectional view of the joint for a watering nozzle according to the first embodiment, showing a water stop state.

FIG. 4 is an external view of the sprinkling nozzle joint shown in FIG. 3; However, the plug 18 shown in FIG. 3 is omitted.

FIG. 5 is a perspective view showing a second cylindrical member 20 constituting the fluid source side main body 1.

FIG. 6 is a perspective view showing a ring member 28.

FIG. 7 is a perspective view showing a valve body 9;

FIG. 8 is a diagram showing a relationship between a stopper 40 and a notch 41 in a water flowing state.

FIG. 9 is a diagram showing a relationship between a stopper 40 and a notch 41 in a water stop state.

FIG. 10 is a sectional view of a sprinkler nozzle joint according to a second embodiment;
Shows the water stop state.

FIGS. 11A and 11B show a valve body 9 of the watering nozzle joint of the third embodiment, where FIG. 11A is a side view and FIG. 11B is a view as seen from the b direction of FIG.

FIG. 12 shows a sprinkling nozzle joint according to a fourth embodiment, in which (a)
Is a sectional view in a water stop state, and (b) is a sectional view taken along the line bb in (a).

FIG. 13 is a sectional view of a sprinkler nozzle joint according to a fifth embodiment;
Shows the water stop state.

FIG. 14 is a sectional view of a sprinkling nozzle joint according to a sixth embodiment;
Shows the water stop state.

FIG. 15 is a sectional view of a joint for a watering nozzle according to a seventh embodiment;
Shows the water stop state.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Fluid source side main body 2 Instrument side main body 4 Hose connection cylinder part 5 Sleeve material 6 Outer cylinder 9 Valve body 10 Poppet part 11 Communication hole 12 Cylindrical body 12a End face 15 Spring 16 Claw 17 Cover part 20 2nd cylinder member 21 Large diameter Part 22 small diameter part 28 ring member 29 projecting piece 34 O-ring 35 first guide piece 36 second guide piece 37 screw part 38 screw part 39 axial groove 40 stopper 41 notch 42 first cylinder member 43 guide part

Claims (4)

(57) [Claims] An apparatus-side connection mechanism for connecting an apparatus such as a watering nozzle is provided at one end of a main body, and a fluid source-side connection mechanism for connecting a hose or a pipe is provided at the other end of the main body. The appliance-side connection mechanism, wherein the tubular body non-rotatably assembled to the main body is slid in the axial direction along the outer peripheral surface of the main body, and the fitting such as a watering nozzle is detached from the main body. An instrument-side main body provided with an instrument-side connection mechanism having a cylindrical body, a fluid-source-side body provided with the fluid-source-side connection mechanism, and either one of the instrument-side main body or the fluid-source-side main body, An assembly member that allows relative rotation of the source-side main body while restricting the main body from being pulled out while being coaxially inserted into one of the other main body,
By a relative rotation of these main bodies, a valve body that moves in the main body in the axial direction, and a stopper provided on one of the cylindrical body and the fluid source side main body and adjacent to the other of the cylindrical body and the fluid source side main body. A notch formed in the other of the cylindrical body and the fluid source side main body, and when the two main bodies are relatively rotated to move the valve body to the water stopping position in the axial direction, the stopper and the notch are in contact with each other. A joint characterized in that it is configured to allow sliding of a cylindrical body facing the joint. 2. The valve body according to claim 1, wherein the valve body is spline-connected to one of the device-side main body and the fluid source-side main body, and screw-connected to one of the device-side main body and the fluid source-side main body. The joint according to claim 1. 3. The joint according to claim 1, wherein the device-side main body is inserted into the fluid source-side main body. 4. The joint according to claim 1, wherein a cover for covering the stopper and the notch is provided on one of the cylindrical body and the fluid source side main body.